现把一些 Java代码生成对应的ASTNode方式列出来，供参考：

List 1 生成Package

// package astexplorer;
java 代码

 

    
PackageDeclaration packageDeclaration = ast.newPackageDeclaration();  
    
unit.setPackage(packageDeclaration);  
    
packageDeclaration.setName(ast.newSimpleName("astexplorer")); 

    
    

// import org.eclipse.swt.SWT;

// import org.eclipse.swt.events.*;

// import org.eclipse.swt.graphics.*;

// import org.eclipse.swt.layout.*;

// import org.eclipse.swt.widgets.*;
java 代码

 

    
for (int i = 0; i < IMPORTS.length; ++i) {  
    
ImportDeclaration importDeclaration = ast.newImportDeclaration();  
    
importDeclaration.setName(ast.newName(getSimpleNames(IMPORTS[i])));  
    
if (IMPORTS[i].indexOf("*") > 0)  
    
importDeclaration.setOnDemand(true);  
    
else  
    
importDeclaration.setOnDemand(false);  
    
  
    
unit.imports().add(importDeclaration);  
    
}  
    

// public class SampleComposite extends Composite 

java 代码

 

    
TypeDeclaration classType = ast.newTypeDeclaration();  
    
classType.setInterface(false);  
    
classType.setModifiers(Modifier.PUBLIC);  
    
classType.setName(ast.newSimpleName("SampleComposite"));  
    
classType.setSuperclass(ast.newSimpleName("Composite"));  
    
unit.types().add(classType);  
    

List 4 生成Constructor Declaration



// public SampleComposite(Composite parent,int style){}

java 代码

 

    
MethodDeclaration methodConstructor = ast.newMethodDeclaration();  
    
methodConstructor.setConstructor(true);  
    
methodConstructor.setModifiers(Modifier.PUBLIC);  
    
methodConstructor.setName(ast.newSimpleName("SampleComposite"));  
    
classType.bodyDeclarations().add(methodConstructor);  
    
  
    
// constructor parameters  
    
  
    
SingleVariableDeclaration variableDeclaration = ast.newSingleVariableDeclaration();  
    
variableDeclaration.setModifiers(Modifier.NONE);  
    
variableDeclaration.setType(ast.newSimpleType(ast.newSimpleName("Composite")));  
    
variableDeclaration.setName(ast.newSimpleName("parent"));  
    
methodConstructor.parameters().add(variableDeclaration);  
    
  
    
variableDeclaration = ast.newSingleVariableDeclaration();  
    
variableDeclaration.setModifiers(Modifier.NONE);  
    
variableDeclaration.setType(ast.newPrimitiveType(PrimitiveType.INT));  
    
variableDeclaration.setName(ast.newSimpleName("style"));  
    
methodConstructor.parameters().add(variableDeclaration);  
    

    
Block constructorBlock = ast.newBlock();  
    
methodConstructor.setBody(constructorBlock);

    
    

 List 5 生成Spuer Invocation



// super(parent,style)

java 代码

 

    
SuperConstructorInvocation superConstructorInvocation = ast.newSuperConstructorInvocation();  
    
constructorBlock.statements().add(superConstructorInvocation);  
    
Expression exp = ast.newSimpleName("parent");  
    
superConstructorInvocation.arguments().add(exp);  
    
superConstructorInvocation.arguments().add(ast.newSimpleName("style"));  
    

List 6 生成ClassInstanceCreation



// GridLayout gridLayout = new GridLayout();

java 代码

 

    
VariableDeclarationFragment vdf = ast.newVariableDeclarationFragment();  
    
vdf.setName(ast.newSimpleName("gridLayout"));  
    
ClassInstanceCreation cc = ast.newClassInstanceCreation();  
    
cc.setName(ast.newSimpleName("GridLayout"));  
    
vdf.setInitializer(cc);  
    
VariableDeclarationStatement vds = ast.newVariableDeclarationStatement(vdf);  
    
vds.setType(ast.newSimpleType(ast.newSimpleName("GridLayout"))); 
    
constructBlock.statements().add(vds);
    

// Label label = new Label(this,SWT.NONE);

java 代码

 

    
VariableDeclarationFragment vdf = ast.newVariableDeclarationFragment();  
    
vdf.setName(ast.newSimpleName("label"));  
    
cc = ast.newClassInstanceCreation();  
    
cc.setName(ast.newSimpleName("Label"));  
    
cc.arguments().add(ast.newThisExpression());  
    
cc.arguments().add(ast.newName(getSimpleNames("SWT.NONE")));  
    
vdf.setInitializer(cc);  

    
    
VariableDeclarationStatement vds = ast.newVariableDeclarationStatement(vdf);  
    
vds.setType(ast.newSimpleType(ast.newSimpleName("Label")));  
    
constructBlock.statements().add(vds);
    

List 7生成MethodInvocation



// setLayout(gridLayout);

java 代码

 

    
MethodInvocation mi = ast.newMethodInvocation();  
    
mi.setName(ast.newSimpleName("setLayout"));  
    
mi.arguments().add(ast.newSimpleName("gridLayout")); 
    
constructorBlock.statements().add(ast.newExpressionStatement(mi));
    

// label.setText("Press the button to close:");

         java 代码

    
mi = ast.newMethodInvocation();   
    
mi.setExpression(ast.newSimpleName("label"));   
    
mi.setName(ast.newSimpleName("setText"));   
    
StringLiteral sl = ast.newStringLiteral();   
    
sl.setLiteralValue("Press the button to close:");   
    
mi.arguments().add(sl);   
    
constructorBlock.statements().add(ast.newExpressionStatement(mi));  
    

// label.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_CENTER));

           java 代码



    
mi = ast.newMethodInvocation();   
    
mi.setExpression(ast.newSimpleName("label"));   
    
mi.setName(ast.newSimpleName("setLayoutData"));   
    
  
    
cc = ast.newClassInstanceCreation();   
    
cc.setName(ast.newSimpleName("GridData"));   
    
cc.arguments().add(ast.newName(getSimpleNames("GridData.HORIZONTAL_ALIGN_CENTER")));   
    
mi.arguments().add(cc);   
    
constructorBlock.statements().add(ast.newExpressionStatement(mi));  
    




 // Button button = new Button(this,SWT.PUSH);
java 代码



    
vdf = ast.newVariableDeclarationFragment();   
    
vdf.setName(ast.newSimpleName("button"));   
    
vds = ast.newVariableDeclarationStatement(vdf);   
    
vds.setType(ast.newSimpleType(ast.newSimpleName("Button")));   
    
constructorBlock.statements().add(vds);   
    
  
    
cc = ast.newClassInstanceCreation();   
    
cc.setName(ast.newSimpleName("Button"));   
    
vdf.setInitializer(cc);   
    
cc.arguments().add(ast.newThisExpression());   
    
cc.arguments().add(ast.newName(getSimpleNames("SWT.PUSH")));  
    



// button.addSelectionListener(new SelectionAdapter() {}); 
    java 代码



    
mi = ast.newMethodInvocation();   
    
constructorBlock.statements().add(ast.newExpressionStatement(mi));   
    
mi.setExpression(ast.newSimpleName("button"));   
    
mi.setName(ast.newSimpleName("addSelectionListener"));   
    
  
    
ClassInstanceCreation ci = ast.newClassInstanceCreation();   
    
ci.setName(ast.newSimpleName("SelectionAdapter"));   
    
mi.arguments().add(ci);   
    
AnonymousClassDeclaration cd = ast.newAnonymousClassDeclaration();   
    
ci.setAnonymousClassDeclaration(cd); 













































// public void setup(){super.setUp()}


    

        

            
MethodDeclaration methodConstructor = ast.newMethodDeclaration();

                    methodConstructor.modifiers().add(

                            ast.newModifier(ModifierKeyword.PUBLIC_KEYWORD));

                    methodConstructor.setName(ast.newSimpleName("setUp"));
        
    
    
        Block constructorBlock = ast.newBlock();

            methodConstructor.setBody(constructorBlock);
    
        SuperMethodInvocation smi = ast.newSuperMethodInvocation();

            smi.setName(ast.newSimpleName("setUp"));

            ExpressionStatement es = ast.newExpressionStatement(smi);

            constructorBlock.statements().add(es);
    
        // set exception

            List targetExNames = methodConstructor.thrownExceptions();

            Name targetExName = ast.newName(Exception.class.getName());

            targetExNames.add(targetExName);
    
        methodConstructor.setJavadoc(JavaDocHelper.getJavaDoc(ast,

                    JavaDocHelper.setUpDoc, null, null));

            classType.bodyDeclarations().add(methodConstructor);